@inproceedings{CZ10:cp,
  title = "A new hybrid tractable class of soft constraint problems",
  author = "Martin C. Cooper and Stanislav \v{Z}ivn\'y",
  year = "2010",
  booktitle = "Proceedings of the 16th International Conference on Principles and Practice of Constraint Programming (CP'10)",
  series = "Lecture Notes in Computer Science",
  url = "http://zivny.cz/publications/cz10cp-preprint.pdf",
  volume = "6308",
  doi = "10.1007/978-3-642-15396-9_15",
}